* Normalized .classpath.
* Deleted top_shadow.png drawable.
* Removed ListView and TableLayout views, and replaced by a unique GridView.
* Removed left and right paddings from item_stack.xml layout.
* Removed top shadow of single card stack.
* Created method setResponsiveLayoutParams() in CardUI.java class that rearranges sizes depending of device.
* Removed getScrollView() method from CardUI.java.
* Global refactor.
Added README.md